Structural, linear and nonlinear optical properties of NiO nanoparticles–multi-walled carbon nanotubes nanocomposite for optoelectronic applications

• Published in: Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2022-06, Vol.195, p.110088, Article 110088
• Main Authors: Alrebdi, Tahani A., Ahmed, Hoda A., Alkallas, Fatemah H., Mwafy, Eman A., Trabelsi, Amira Ben Gouider, Mostafa, Ayman M.
• Format: Article
• Language: English
• Subjects: Absorptivity; Decoration; Laser ablation; Multi wall carbon nanotubes; Nanocomposites; Nanoparticles; Nickel oxides; NiO; Nonlinear optics; Nonlinearity; Optical measuring instruments; Optical properties; Optoelectronics; PLAL; Pulsed lasers; Refractivity; Solid state lasers; Switches; Z-scan
• ISSN: 0969-806X; 1879-0895
• DOI: 10.1016/j.radphyschem.2022.110088

A nanosecond solid-state laser was employed to perform nanocomposite structure from multi-walled carbon nanotubes (MWCNTs) decorated with nickel oxide nanoparticles (NiO NPs) in a single one-step for optoelectronic applications. The preparation was carried out by pulsed laser ablation method, followed by investigation the physicochemical properties via various techniques. Then, the nonlinear characteristics were measured using a Z-scan approach: nonlinear absorption coefficient (β), nonlinear refractive index (n2), and 3rd nonlinear optical susceptibility (χ3). It was determined that as the intensity of the incident lase beam rised, the values of β gradually droped. Also, the study showed that the nonlinearity of NiO NPs/MWCNTs nanocomposite was significantly improved in compared with inividual MWCNTs and NiO NPs as after the decoration with NiO NPs, the taken time for electrons to transport and photons to transition was incrased, leading to an improvment in the nonlinear optical properties of the nanocomposite. These results provide this simple method for decorating MWCNTs by NiO NPs to produce nanocomposite material with outstanding nonlinear optical characteristics to be applicable in the optical devices like optical switches and optical sensors. •The β, n2, and x3 of MWCNTs doped NiO NPs are estimated.•The sign of the nonlinear reflective index of NiO NPs/MWCTs is negative.•NiO-MWCNTs nanocomposite was synthesized by ablation of Ni target in f-MWCNTs•The produced nanocomposite has high distribution without using any surfactant.•The nanocomposites were synthesized via simple one-pot green method